BR0200686A - Método de controle de distribuições de peso molecular durante um processo de polimerização - Google Patents

Método de controle de distribuições de peso molecular durante um processo de polimerização

Info

Publication number
BR0200686A
BR0200686A BR0200686-3A BR0200686A BR0200686A BR 0200686 A BR0200686 A BR 0200686A BR 0200686 A BR0200686 A BR 0200686A BR 0200686 A BR0200686 A BR 0200686A
Authority
BR
Brazil
Prior art keywords
initiator
molecular weight
polymerization process
weight distributions
controlling molecular
Prior art date
Application number
BR0200686-3A
Other languages
English (en)
Inventor
Jose M Sosa
Aron T Griffith
Original Assignee
Fina Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fina Technology filed Critical Fina Technology
Publication of BR0200686A publication Critical patent/BR0200686A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F6/00—Post-polymerisation treatments
    • C08F6/001—Removal of residual monomers by physical means
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F6/00—Post-polymerisation treatments
    • C08F6/006—Removal of residual monomers by chemical reaction, e.g. scavenging

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Polymerisation Methods In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polyamides (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Polymerization Catalysts (AREA)

Abstract

"MéTODO DE CONTROLE DE DISTRIBUIçõES DE PESO MOLECULAR DURANTE UM PROCESSO DE POLIMERIZAçãO". A presente invenção provê a superação das deficiências da técnica anterior, a presente invenção provê um método de produção de um polímero. O método inclui tirar uma corrente de produto de um sistema de polimerização aromático de monovinila em que a corrente de produto compreende um monómero polimerizado e um monómero. A corrente de produto é introduzida para dentro de um trocador de calor de fluxo ascendente na presença de um iniciador, tal como um peróxido, que afeta uma polimerização do monómero no trocador de calor de fluxo ascendente. O iniciador pode incluir um iniciador de baixa temperatura e um iniciador de alta temperatura onde uma razão do iniciador de alta temperatura para o iniciador de baixa temperatura pode variar desde cerca de 0:600 a cerca de 50:600.
BR0200686-3A 2001-03-09 2002-03-07 Método de controle de distribuições de peso molecular durante um processo de polimerização BR0200686A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/803,598 US6486271B1 (en) 2001-03-09 2001-03-09 Method of controlling molecular weight distributions during a polymerization process

Publications (1)

Publication Number Publication Date
BR0200686A true BR0200686A (pt) 2002-12-03

Family

ID=25186966

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0200686-3A BR0200686A (pt) 2001-03-09 2002-03-07 Método de controle de distribuições de peso molecular durante um processo de polimerização

Country Status (11)

Country Link
US (1) US6486271B1 (pt)
EP (1) EP1238991B1 (pt)
JP (2) JP2002265503A (pt)
KR (1) KR100875725B1 (pt)
CN (1) CN1232540C (pt)
AT (1) ATE340808T1 (pt)
BR (1) BR0200686A (pt)
DE (1) DE60214918T2 (pt)
ES (1) ES2272634T3 (pt)
MX (1) MXPA02002458A (pt)
TW (1) TW583194B (pt)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6608150B1 (en) * 2002-10-08 2003-08-19 Atofina Chemicals, Inc. Preparation of expandable styrene polymers
US20050256216A1 (en) * 2004-05-14 2005-11-17 Berti Douglas A Production of polystyrene for foaming applications using a combination of peroxide initiators
US7754817B2 (en) * 2005-10-31 2010-07-13 Fina Technology, Inc. Low temperature initiators for improving the rubber phase volume of HIPS formulations
US9492226B2 (en) 2005-12-06 2016-11-15 St. Jude Medical, Atrial Fibrillation Division, Inc. Graphical user interface for real-time RF lesion depth display
US8403925B2 (en) 2006-12-06 2013-03-26 St. Jude Medical, Atrial Fibrillation Division, Inc. System and method for assessing lesions in tissue
KR100982821B1 (ko) * 2006-08-21 2010-09-16 주식회사 엘지화학 열안정성이 우수한 그라프트 고무 라텍스의 제조방법 및이의 응집방법
US9204927B2 (en) 2009-05-13 2015-12-08 St. Jude Medical, Atrial Fibrillation Division, Inc. System and method for presenting information representative of lesion formation in tissue during an ablation procedure
US7858729B2 (en) * 2008-05-29 2010-12-28 Novomer, Inc. Methods of controlling molecular weight distribution of polymers and compositions thereof
CN102746424A (zh) * 2011-04-20 2012-10-24 南京华狮化工有限公司 一种自由基聚合引发剂组合物及其应用

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE786885A (fr) * 1971-07-30 1973-01-29 Basf Ag Procede d'elimination des constituants vaporisables de solutions polymeres
US4125696A (en) * 1977-01-06 1978-11-14 Pennwalt Corporation Polymerization process using di-t-butyl diperoxycarbonate as a finishing catalyst
JPS5918707A (ja) * 1982-07-24 1984-01-31 Mitsui Toatsu Chem Inc 脱揮発重合体の製造方法
US4777210A (en) 1986-07-25 1988-10-11 Cosden Technology, Inc. Continuous production of high impact polystyrene
US5274029A (en) * 1990-09-10 1993-12-28 Kelley Joseph M Styrene polymerization process
JPH06345810A (ja) * 1993-06-10 1994-12-20 Idemitsu Petrochem Co Ltd スチレン系重合体からの揮発性物質の除去方法
US5540813A (en) * 1994-01-19 1996-07-30 Fina Technology, Inc. Method for reducing volatiles in polymerized styrene
US6353066B1 (en) * 2001-02-09 2002-03-05 Fina Technology, Inc. Method for producing copolymers in the presence of a chain transfer agent

Also Published As

Publication number Publication date
US6486271B1 (en) 2002-11-26
JP2008179828A (ja) 2008-08-07
KR100875725B1 (ko) 2008-12-26
ATE340808T1 (de) 2006-10-15
KR20020072194A (ko) 2002-09-14
EP1238991B1 (en) 2006-09-27
EP1238991A2 (en) 2002-09-11
CN1374326A (zh) 2002-10-16
TW583194B (en) 2004-04-11
DE60214918D1 (de) 2006-11-09
MXPA02002458A (es) 2004-06-22
JP4987763B2 (ja) 2012-07-25
EP1238991A3 (en) 2003-10-29
DE60214918T2 (de) 2007-06-06
CN1232540C (zh) 2005-12-21
JP2002265503A (ja) 2002-09-18
ES2272634T3 (es) 2007-05-01

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B11D Dismissal acc. art. 38, par 2 of ipl - failure to pay fee after grant in time